Long-lifetime supersolid in a two-component dipolar Bose-Einstein condensate

Recent studies on supersolidity in a single-component Bose-Einstein condensate (BEC) have relied on the Lee-Huang-Yang (LHY) correction for stabilization of self-bound droplets, which, however, involves a high density inside the droplets, limiting the lifetime of the supersolid. Here we propose a two-component mixture of dipolar and nondipolar BECs, such as an 166Er-87Rb mixture, to create and stabilize a supersolid without the LHY correction, which can suppress the atomic loss and may allow observation of the long-time dynamics of the supersolid. In such a system, supersolidity can be controlled by the difference in the trap centers between the two components.

Automated summary

Recent studies have found that the use of the Lee-Huang-Yang correction to stabilize self-bound droplets in a single-component Bose-Einstein condensate (BEC) for supersolidity involves high density inside the droplets, which limits the lifetime of the supersolid. This study proposes a two-component mixture of dipolar and nondipolar BECs, such as an 166Er-87Rb mixture, to create and stabilize a supersolid without the need for the LHY correction.